c8gb.12xlargevsr8gb.12xlarge
c8gb.12xlarge is 35% cheaper than r8gb.12xlarge on demand in US East (N. Virginia), saving $1,115.66 a month.
| At a glance | c8gb.12xlarge | r8gb.12xlarge |
|---|---|---|
| On-demand | $2.844/hr35% less | $4.372/hr |
| Lowest rate | $0.9077/hr27% lessSpot, can be interrupted | $1.246/hrSpot, can be interrupted |
| Size | 48 vCPUs, 96 GiB | 48 vCPUs, 384 GiB |
| Processor | AWS Graviton4 Processor | AWS Graviton4 Processor |
| Architecture | arm64 | arm64 |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.
| Option | c8gb.12xlarge | r8gb.12xlarge | r8gb.12xlarge vs c8gb.12xlarge |
|---|---|---|---|
| On-demandPay by the hour | $2.844 | $4.372 | ▲ 54% |
| SpotCan be interrupted | 68% off$0.9077 | 71% off$1.246 | ▲ 37% |
| 1-yr savings planHourly commitment | 28% off$2.061 | 28% off$3.168 | ▲ 54% |
| 3-yr savings planHourly commitment | 58% off$1.189 | 53% off$2.04 | ▲ 72% |
Key differences
The biggest lead each one has.
Where c8gb.12xlarge leads
On-demand price$2.844 vs $4.372 per hour
35% cheaperWhere r8gb.12xlarge leads
Memory (GiB)384 vs 96
4× higherSpecs
4 of 39 specs differ. Those are in bold.
| ComputeAll 9 match | c8gb.12xlarge | r8gb.12xlarge |
|---|---|---|
| vCPUs | 48 | 48 |
| Physical cores | 48 | 48 |
| Threads per core | 1 | 1 |
| Architecture | arm64 | arm64 |
| Processor | AWS Graviton4 Processor | AWS Graviton4 Processor |
| CPU maker | AWS | AWS |
| Clock speed | 2.8 GHz | 2.8 GHz |
| Sustained clock | 2.8 GHz | 2.8 GHz |
| Burstable | No | No |
| Memory1 of 1 differ | c8gb.12xlarge | r8gb.12xlarge |
|---|---|---|
| Memory (GiB) | 96 | 384 |
| NetworkingAll 8 match | c8gb.12xlarge | r8gb.12xlarge |
|---|---|---|
| Network | 100 Gigabit | 100 Gigabit |
| Network baseline | 100 Gbps | 100 Gbps |
| Network peak | 100 Gbps | 100 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 12 | 12 |
| IPv4 addresses per interface | 30 | 30 |
| StorageAll 11 match | c8gb.12xlarge | r8gb.12xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 75000 Mbps | 75000 Mbps |
| EBS baseline bandwidth | 75,000 Mbps | 75,000 Mbps |
| EBS max bandwidth | 75,000 Mbps | 75,000 Mbps |
| EBS baseline throughput | 9,375 MB/s | 9,375 MB/s |
| EBS max throughput | 9,375 MB/s | 9,375 MB/s |
| EBS baseline IOPS | 360,000 | 360,000 |
| EBS max IOPS | 360,000 | 360,000 |
| Max EBS volumes | 32 | 32 |
| Instance details3 of 10 differ | c8gb.12xlarge | r8gb.12xlarge |
|---|---|---|
| Family | c8gb | r8gb |
| Category | Compute optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 96 | 96 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | Yes | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | UEFI | UEFI |
On-demand prices by region
Cheapest for c8gb.12xlarge first. Linux, USD per hour.
| Region | c8gb.12xlarge | r8gb.12xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $2.844 | $4.372 | ▲ 54% |
| US West (Oregon)us-west-2 | $2.844 | $4.372 | ▲ 54% |
Keep exploring
Each type’s own page, and how it compares with others.
AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.